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Solid-liquid Equilibria (SLE) of the System Containing the Sulfates of Lithium and Potassium at 303.2 and 318.2 K

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Abstract

The solid-liquid phase equilibria of aqueous system containing the sulfates of lithium and potassium (Li2SO4 + K2SO4 + H2O) at T = 303.2 and 318.2 K were done by isothermal dissolution method. The phase equilibria data (solubility, density, and refractive index) of the system were determined experimentally. The corresponding solid-liquid phase diagram, density/refractive index versus composition diagrams, were plotted. There are two ternary invariant points and three crystallization regions corresponding to Li2SO4·H2O, LiKSO4, and K2SO4 in the phase diagram of system Li2SO4 + K2SO4 + H2O at 303.2 and 318.2 K. A comparision of system Li2SO4 + K2SO4 + H2O at different temperature (T = 288.2, 303.2, 318.2 and 348.2 K) shown that the double salt LiKSO4 was formed in the above mentioned temperatures, and the crystallization region of the LiKSO4 increases gradually with the increase of temperature.

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No datasets were generated or analysed during the current study.

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Acknowledgements

This project was supported by Sichuan Science and Technology Program (No. 2022YFQ0075), Major Science and Technology Projects of Tibet Autonomous Region(XZ202201ZD0004G).

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Authors and Affiliations

  1. College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, P. R. China

    Zhihao Yao, Xudong Yu, Zhixing Zhao, Xia Feng, Yousheng Yang, Qi Li & Ying Zeng

  2. East China University of Technology, Nanchang, 330032, P. R. China

    Hao Jiang

  3. Quzhou Yongzheng Lithium Industry Technology Co., Ltd, Quzhou, 324000, P. R. China

    Yiran Li

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  1. Zhihao Yao
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  2. Xudong Yu
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  3. Zhixing Zhao
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  4. Xia Feng
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  5. Yousheng Yang
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  6. Qi Li
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  7. Ying Zeng
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  8. Hao Jiang
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  9. Yiran Li
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Contributions

Z.H.Y. Writing-Review & Editing. X.D.Y. Conceptualization, Methodology, WritingReview & Editing. Z.X.Z. Validation, Investigation, Data Curation, Writing-Original Draft. X.F. Formal analysis, Writing-Review & Editing. Y.S.Y. Formal analysis, Data Curation, Writing-Original Draft. Q.L. Data Curation, Writing-Original Draft. Y.Z. Methodology, Conceptualization, Supervision. H.J. Resources, Funding acquisition. Y.R.L. Data Curation, Resources.

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Correspondence to Xudong Yu.

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Yao, Z., Yu, X., Zhao, Z. et al. Solid-liquid Equilibria (SLE) of the System Containing the Sulfates of Lithium and Potassium at 303.2 and 318.2 K. Aquat Geochem (2024). https://doi.org/10.1007/s10498-023-09420-5

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  • DOI: https://doi.org/10.1007/s10498-023-09420-5

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